[ronaldx]

A mayor-supported electric bike hire scheme for Muswell Hill in London suggests that they're legally ok: http://www.bbc.co.uk/news/uk-england-london-24651760

[rwmj]

No, the laws on higher powered electric bicycles are not clear:

http://www.atob.org.uk/electric-bikes/electric-bike-legislat...

http://www.bikeradar.com/gear/article/electric-bikes-and-the...

(Edit, better link)